Wrist exercising device and improved housing thereof

ABSTRACT

An exemplary housing of a wrist exercising device includes a first cover, a second cover and a fixing ring. The first cover has a first bowl part and a first annular joining part. The first bowl part has a first opening end, and the first annular joining part extends from the first opening end. The second cover has a second bowl part and a second annular joining part. The second bowl part has a second opening end, and the second annular joining part extends from the second opening end. The fixing ring joins the first and second annular joining parts. A wrist exercising device using the housing is also provided.

TECHNICAL FIELD

The present invention relates to a portable exercising device, and more particularly to a wrist exercising device and a housing thereof.

BACKGROUND

Recent years, various exercising devices are available in the market as people become to pay more and more attention to their health. The exercising devices each have a particular function, wherein the wrist exercising device is particularly devised for the users to exercise the wrists' muscles, so as to build the strength of twists and promote the blood circulation thereof.

FIG. 1A is a schematic cross-sectional view of a housing of a conventional wrist exercising device. FIG. 1B is a schematic enlarged view of an area R in FIG. 1A. As shown in FIGS. 1A and 1B, the housing 100 includes a top cover 110 and a bottom cover 120. The top cover 110 has a joining part 112 and the bottom cover 120 includes a joining part 122 corresponding to the joining part 112. The top cover 110 and the bottom cover 120 can be combined through a combination of the joining parts 112, 122. Particularly, the joining part 112 has a screw thread structure 113 and the annular joining part 122 has a screw thread structure 123 corresponding to the screw thread structure 113, and in the prior art, the combination of the top cover 110 and the bottom cover 120 is realized by joining the screw thread structures 113, 123 to each other.

However, the top and bottom covers 110, 120 are required to have a sufficient wall thickness for processing the screw thread structures 113, 123 thereon. As a result, more material is required to manufacture the housing 100, thereby causing a relatively high manufacturing cost and a relatively large weight for the housing 100.

SUMMARY OF EMBODIMENTS

The present invention provides a housing of a wrist exercising device with advantages of lower cost and lighter weight.

The present invention further provides a wrist exercising device with advantages of lower cost and lighter weight.

To achieve the above-mentioned advantage or other advantages, the present invention provides a housing of a wrist exercising device, which includes a first cover, a second cover and a fixing ring. The first cover has a first bowl part and a first annular joining part. The first bowl part has a first opening end, and the first annular joining part extends from the first opening end. The second cover has a second bowl part and a second annular joining part. The second bowl part has a second opening end, and the second annular joining part extends from the second opening end. The fixing ring joins the first and second annular joining parts.

In an embodiment of the present invention, the first bowl part has a first extending segment arranged at the first opening end thereof and extending inwardly from the first opening end, and the first annular joining part is installed to the first extending segment. The second bowl part has a second extending segment arranged at the second opening end thereof and extending inwardly from the second opening end, and the second annular joining part is installed to the second extending segment. The two ends of the fixing ring are leant against the first and second extending segments, respectively.

In an embodiment of the present invention, the first cover further has a first annular platform annularly installed to one side of the first annular joining part facing to the second annular joining part, the second cover further has a second annular platform annularly connected to one side of the second annular joining part facing to the first annular joining part, and the first and second annular platforms corresponds to each other.

In an embodiment of the present invention, the housing of the wrist exercising device further includes an outer ring surrounding the fixing ring.

In an embodiment of the present invention, the first and second annular joining parts are engaged to and surrounded by the fixing ring.

To achieve the above-mentioned advantage or other advantages, the present invention further provides a wrist exercising device, which includes the above-mentioned housing and a rotating device disposed in the housing.

In an embodiment of the present invention, the rotating device includes a rotating shaft, an annular wrapping element and a rotating ring. The rotating shaft has two ends installed between the first and second annular platforms. The annular wrapping element wraps a portion of the rotating shaft. The rotating ring surrounds the rotating shaft and has two opposite shaft holes into which the two ends of the rotating shaft are inserted, respectively.

In an embodiment of the present invention, the wrist exercising device further includes a first annular track and a second annular track. The first annular track is disposed at to the first annular platform and the second annular track is disposed at the second annular platform. The two ends of the rotating shaft are installed between the first and second annular tracks.

In an embodiment of the present invention, the wrist exercising device further includes a counter, which is disposed at one side of the first cover opposite to the first opening end or disposed at one side of the second cover opposite to the second opening end. The rotating device further includes a signal emitter attached to the annular wrapping element and configured to provide signals to the counter.

In the embodiment of the wrist exercising device and the housing thereof, because the first and second covers of the housing are provided with the first and second annular joining parts, respectively, the first and second covers can be combined through joining the fixing ring to the first and second annular joining parts. Furthermore, since screw thread structures are not required to be formed on the first and second covers, the wall thickness of each of the first and second covers can be significantly reduced, thereby reducing the material cost and the weight of the housing. Thus, the wrist exercising device of the present embodiment has the advantages of low cost and light weight.

BRIEF DESCRIPTION OF THE DRAWINGS

The above embodiments will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which:

FIG. 1A is a schematic cross-sectional view of a housing of a conventional wrist exercising device;

FIG. 1B is a schematic enlarged view of an area R in FIG. 1A;

FIG. 2 is a schematic cross-sectional view of a wrist exercising device in accordance with an embodiment of the present invention; and

FIG. 3 is a perspective exploded view of the wrist exercising device in FIG. 2.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The disclosure will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.

FIG. 2 is a schematic cross-sectional view of a wrist exercising device in accordance with an embodiment of the present invention. FIG. 3 is a perspective exploded view of the wrist exercising device in FIG. 2. As shown in FIGS. 2, 3, the wrist exercising device 200 includes a housing 300 and a rotating device 210 disposed in the housing 300.

The housing 300 includes a first cover 310, a second cover 320 and a fixing ring 330. The first cover 310, second cover 320 and fixing ring 330 can, without limitation, be made of metal (e.g., stainless steel) or plastic. The first cover 310 has a first bowl part 312 and a first annular joining part 314. A first opening end 313 is defined in one side of the first cover 310 facing to the second cover 320, and the first annular joining part 314 is extended from the first opening end 313. The second cover 320 has a second bowl part 322 and a second annular joining part 324. A second opening end 323 is defined in one side of the second cover 320 facing to the first cover 310, and the second annular joining part 324 is extended from the second opening end 323. In addition, the fixing ring 330 is capable of joining with the first and second annular joining parts 314, 324, and thus the first and second covers 310, 320 can be combined with each other.

In the present embodiment, joining the fixing ring 330 to the first and second annular joining parts 314, 324 may be realized by engaging and surrounding the fixing ring 330 to the first and second annular joining parts 314, 324, so that the outer diameters of the first and second annular joining parts 314, 324 each may be roughly equal to the inner diameter of the fixing ring 330. Furthermore, the first bowl part 312 may have a first extending segment 315. The first extending segment 315 is arranged at the first opening end 313 and extends inwardly, and the first annular joining part 314 is connected to the first extending segment 315. The second bowl part 322 may have a second extending segment 325. The second extending segment 325 is arranged at the second opening end 323 and extends inwardly, and the second annular joining part 324 is connected to the second extending segment 325. Specifically, when the two ends of the fixing ring 330 are leant against the first and second extending segments 315, 325, respectively, the engagement of the fixing ring 330 to the first and second annular joining parts 314, 324 is completed. In addition, the housing 300 may further include an outer ring 340 surrounding the fixing ring 330. Particularly, the outer ring 340 wraps the fixing ring 330 after the first and second covers 310, 320 are joined by the fixing ring 330. The outer ring 340 has elasticity and can be made of plastic, rubber, or other elastic materials.

The first cover 310 may further include a first annular platform 316 installed to the first annular joining part 314. The second cover 320 may further include a second annular platform 326 installed to the second annular joining part 324, and the first annular platform 316 corresponds to the second annular platform 326. The rotating device 210 may include a rotating shaft 211, an annular wrapping element 212 and a rotating ring 213. Two ends of the rotating shaft 211 are, for example, installed between the first and second annular platforms 316, 326. The annular wrapping element 212 wraps a portion of the rotating shaft 211. The rotating shaft 211, for example, is provided with a plurality of vanes 214. The rotating ring 213 surrounds the rotating shaft 211 and has two opposite shaft holes 213 a. The two ends of the rotating shaft 211 are inserted into the two shaft holes 213 a of the rotating ring 213, respectively. Additionally, the rotating shaft 211 and the annular wrapping element 212 can be integrated into one piece. The material for the rotating shaft 211 and the annular wrapping element 212 can, without limitation, be metal such as zinc alloy. In other embodiments, the rotating shaft 211 and the annular wrapping element 212 can be formed separately and then assembled to each other.

The wrist exercising device 200 in the present embodiment can further include a first annular track 220 and a second annular track 230. The first annular track 220 is disposed at the first annular platform 316, the second annular track 230 is disposed at the second annular platform 326, and the two ends of the rotating shaft 211 are disposed between the first and second annular tracks 220, 230. Specifically, the two ends of the rotating shaft 211 are leant on the first and second annular tracks 220, 230, and thereby being capable of rotating relative to the first and second annular tracks 220, 230. The first and second annular tracks 220, 230 are made from such a material as to have a sufficient friction coefficient relative to the rotating shaft 211, so that the rotating shaft 211 can rotate relative to the first and second annular tracks 220, 230. For example, the first and second annular tracks 220, 230 can, without limitation, be made of plastic or rubber.

In another embodiment, when the first and second covers 310, 320 are made from such a material so as to have a sufficient friction coefficient relative to the two ends of the rotating shaft 211 and thereby the rotating shaft 211 can rotate, the two ends of the rotating shaft 211 can be directly leant on the first and second annular platforms 316, 326. Therefore, the first and second annular tracks 220, 230 can be omitted. For example, when the first and second covers 310, 320 are made of plastic, the two ends of the rotating shaft 211 can be directly leant on the first and second annular platforms 313, 323.

In the present embodiment of the wrist exercising device 200, because the first and second covers 310, 320 of the housing 300 are provided with the first and second annular joining parts 314, 324, respectively, the first and second covers 310, 320 can be combined through joining the fixing ring 330 to the first and second annular joining parts 314, 324. Furthermore, since screw thread structures are not required to be formed on the first and second covers 310, 320, the wall thickness of each of the first and second covers 310, 320 can be significantly reduced, thereby reducing the material cost and the weight of the housing 300. Thus, the wrist exercising device 200 of the present embodiment has the advantages of low cost and light weight.

In order to render the user to know the number of revolutions of the rotating device 210 in the housing 300, the wrist exercising device 200 can further include a counter 240. The counter 240 is, for example, disposed at one side of the second cover 320 opposite to the second opening end 323. That is, the counter 240 is disposed at a second bottom wall 327 of the second cover 320. In an embodiment of the second bottom wall 327 defined with an opening 328, the counter 240 can be disposed in the opening 328. In another embodiment, the counter 240 is, for example, disposed at one side of the first cover 310 opposite to the first opening end 313. That is, the counter 240 is disposed at a first bottom wall 317 of the first cover 310. Specifically, in an embodiment of the first bottom wall 317 defined with an opening 318, the counter 240 can be disposed in the opening 318.

Except for the counter 240, the rotating device 210 further includes a signal emitter 215, which is fixedly attached to the annular wrapping element 212 and configured to provide signals to the counter 240. When the rotating device 210 rotates, the signal emitter 215 rotates with the rotating device 210 so that the counter 240 can count the number of revolutions of the rotating device 210 according to the variation of the sensed signal. In the present embodiment, the signal emitter 215 is, for example, a magnet unit and accordingly the counter 240 is capable of sensing magnetic signals.

While the disclosure has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the disclosure needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures. 

What is claimed is:
 1. A wrist exercising device, comprising: a housing comprising: a first cover having a first bowl part and a first annular joining part, the first bowl part comprising a first opening end, and the first annular joining part extending from the first opening end; a second cover having a second bowl part and a second annular joining part, the second bowl part comprising a second opening end, and the second annular joining part extending from the second opening end; and a fixing ring joining the first and second annular joining parts; and a rotating device disposed in the housing.
 2. The wrist exercising device according to claim 1, wherein the first bowl part comprises a first extending segment arranged at the first opening end thereof and extending inwardly from the first opening end, the first annular joining part is installed to the first extending segment, the second bowl part comprises a second extending segment arranged at the second opening end thereof and extending inwardly from the second opening end, the second annular joining part is installed to the second extending segment, and two ends of the fixing ring are leant against the first and second extending segments, respectively.
 3. The wrist exercising device according to claim 1, wherein the first cover further comprises a first annular platform annularly installed to the first annular joining part, the second cover further comprises a second annular platform annularly installed to the second annular joining part, the first and second annular platforms correspond to each other, and the rotating device comprises: a rotating shaft having two ends installed between the first and second annular platforms; an annular wrapping element wrapping a portion of the rotating shaft; and a rotating ring surrounding the rotating shaft and having two opposite shaft holes into which the two ends of the rotating shaft are inserted, respectively.
 4. The wrist exercising device according to claim 3, further comprising: a first annular track disposed at the first annular platform; and a second annular track disposed at the second annular platform; wherein the two ends of the rotating shaft are installed between the first and second annular tracks.
 5. The wrist exercising device according to claim 3, further comprising a counter disposed at one side of the first cover opposite to the first opening end or disposed at one side of the second cover opposite to the second opening end, the rotating device further comprising a signal emitter attached to the annular wrapping element and configured to provide signals to the counter.
 6. The wrist exercising device according to claim 1, further comprising an outer ring surrounding the fixing ring.
 7. The wrist exercising device according to claim 1, wherein the first and second annular joining parts are engaged to and surrounded by the fixing ring.
 8. A housing of a wrist exercising device, comprising: a first cover having a first bowl part and a first annular joining part, the first bowl part comprising a first opening end, and the first annular joining part extending from the first opening end; a second cover having a second bowl part and a second annular joining part, the second bowl part comprising a second opening end, and the second annular joining part extending from the second opening end; and; a fixing ring joining the first and second annular joining parts.
 9. The housing of the wrist exercising device according to claim 8, wherein the first bowl part comprises a first extending segment arranged at the first opening end thereof and extending inwardly from the first opening end, the first annular joining part is installed to the first extending segment, the second bowl part comprises a second extending segment arranged at the second opening end thereof and extending inwardly from the second opening end, the second annular joining part is installed to the second extending segment, and two ends of the fixing ring are leant against the first and second extending segments, respectively.
 10. The housing of the wrist exercising device according to claim 1, wherein the first cover further comprises a first annular platform annularly installed to one side of the first annular joining part facing to the second annular joining part, the second cover further comprises a second annular platform annularly installed to one side of the second annular joining part facing to the first annular joining part, and the first and second annular platforms correspond to each other.
 11. The housing of the wrist exercising device according to claim 8, further comprising an outer ring surrounding the fixing ring.
 12. The housing of the wrist exercising device according to claim 8, wherein the first and second annular joining parts are engaged to and surrounded by the fixing ring. 